AR081122A1 - PROCESS FOR DELIGNIFICATION AND WHITENING OF CHEMICAL PULP - Google Patents

PROCESS FOR DELIGNIFICATION AND WHITENING OF CHEMICAL PULP

Info

Publication number
AR081122A1
AR081122A1 ARP110100154A ARP110100154A AR081122A1 AR 081122 A1 AR081122 A1 AR 081122A1 AR P110100154 A ARP110100154 A AR P110100154A AR P110100154 A ARP110100154 A AR P110100154A AR 081122 A1 AR081122 A1 AR 081122A1
Authority
AR
Argentina
Prior art keywords
chemical pulp
delignification
whitening
chlorine dioxide
bleaching
Prior art date
Application number
ARP110100154A
Other languages
Spanish (es)
Inventor
Thomas Dietz
Original Assignee
Evonik Degussa Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Evonik Degussa Gmbh filed Critical Evonik Degussa Gmbh
Publication of AR081122A1 publication Critical patent/AR081122A1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)

Abstract

La deslignificacion y el blanqueado de la pulpa química por una etapa de blanqueado, en los que la pulpa química reacciona primero con dioxido de cloro y, después de la reaccion del dioxido de cloro, se hace reaccionar adicionalmente sin lavado intermedio con peroxido de hidrogeno en la presencia de un molibdato o tungstato, permite la produccion de la pulpa química que tiene una blancura de al menos 89,5%, que tiene mejor estabilidad al amarillamiento y reducido dano oxidativo.The delignification and bleaching of the chemical pulp by a bleaching stage, in which the chemical pulp reacts first with chlorine dioxide and, after the reaction of chlorine dioxide, is further reacted without intermediate washing with hydrogen peroxide in The presence of a molybdate or tungstate allows the production of chemical pulp that has a whiteness of at least 89.5%, which has better yellowing stability and reduced oxidative damage.

ARP110100154A 2010-01-19 2011-01-18 PROCESS FOR DELIGNIFICATION AND WHITENING OF CHEMICAL PULP AR081122A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010001001A DE102010001001A1 (en) 2010-01-19 2010-01-19 Process for delignification and bleaching of pulp

Publications (1)

Publication Number Publication Date
AR081122A1 true AR081122A1 (en) 2012-06-27

Family

ID=44070008

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP110100154A AR081122A1 (en) 2010-01-19 2011-01-18 PROCESS FOR DELIGNIFICATION AND WHITENING OF CHEMICAL PULP

Country Status (17)

Country Link
US (1) US8568558B2 (en)
EP (1) EP2345760B1 (en)
JP (1) JP5800511B2 (en)
KR (1) KR101818921B1 (en)
AR (1) AR081122A1 (en)
AU (1) AU2011200185B2 (en)
BR (1) BRPI1100069A2 (en)
CA (1) CA2728349C (en)
DE (1) DE102010001001A1 (en)
ES (1) ES2638318T3 (en)
LT (1) LT2345760T (en)
NZ (1) NZ590491A (en)
PL (1) PL2345760T3 (en)
PT (1) PT2345760T (en)
RU (1) RU2525760C2 (en)
UY (1) UY33190A (en)
ZA (1) ZA201100470B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE532370C2 (en) * 2008-02-28 2009-12-29 Metso Paper Inc Method of bleaching a pulp
DE102010001001A1 (en) 2010-01-19 2011-07-21 Evonik Degussa GmbH, 45128 Process for delignification and bleaching of pulp
DE102012200990A1 (en) 2012-01-24 2013-07-25 Evonik Industries Ag A process for the recovery of molybdate in a molybdate-catalyzed delignification of pulp with hydrogen peroxide
RU2503764C1 (en) * 2012-11-28 2014-01-10 федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Пермский национальный исследовательский политехнический университет" Method of bleaching of bisulfite pulp
FR3007044B1 (en) * 2013-06-13 2016-01-15 Air Liquide PROCESS FOR TREATING CHEMICAL PAPER PASTES BY OZONE TREATMENT IN THE PRESENCE OF MAGNESIUM IONS
RU2523118C1 (en) * 2013-06-17 2014-07-20 федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Пермский национальный исследовательский политехнический университет" Bleaching process of hardwood sulphate pulp
RU2016122102A (en) * 2013-11-06 2017-12-11 Эвоник Дегусса Гмбх METHOD OF DELIGNIFICATION AND BULPTURE OF CELLULOSE
CN104594102A (en) * 2014-12-29 2015-05-06 周锦和 Production technology of pulp board
WO2016159403A1 (en) * 2015-03-30 2016-10-06 주식회사 아시아모빌 Pulp-bleaching method using chelate compound
FR3062138B1 (en) * 2017-01-23 2019-06-07 Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses PROCESS FOR WHITENING A PAPER PULP
WO2021231372A1 (en) * 2020-05-11 2021-11-18 Worcester Polytechnic Institute Non-decellularized plant leaf cultures for meat
RU2759613C1 (en) * 2021-03-22 2021-11-16 федеральное государственное автономное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" Method for bleaching bisulphite cellulose

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DE102010001001A1 (en) 2010-01-19 2011-07-21 Evonik Degussa GmbH, 45128 Process for delignification and bleaching of pulp

Also Published As

Publication number Publication date
JP2011149140A (en) 2011-08-04
UY33190A (en) 2011-05-31
CA2728349A1 (en) 2011-07-19
CA2728349C (en) 2013-02-26
JP5800511B2 (en) 2015-10-28
AU2011200185B2 (en) 2015-11-12
EP2345760B1 (en) 2017-07-12
DE102010001001A1 (en) 2011-07-21
US8568558B2 (en) 2013-10-29
ES2638318T3 (en) 2017-10-19
PL2345760T3 (en) 2017-12-29
KR20110085906A (en) 2011-07-27
AU2011200185A1 (en) 2011-08-04
BRPI1100069A2 (en) 2013-10-22
ZA201100470B (en) 2011-10-26
NZ590491A (en) 2012-05-25
EP2345760A1 (en) 2011-07-20
KR101818921B1 (en) 2018-01-17
US20110174451A1 (en) 2011-07-21
PT2345760T (en) 2017-08-30
LT2345760T (en) 2017-10-25
RU2011101637A (en) 2012-09-27
RU2525760C2 (en) 2014-08-20

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Legal Events

Date Code Title Description
FG Grant, registration
FD Application declared void or lapsed, e.g., due to non-payment of fee